(a) Account for the following observations :
(i) `SF_(4)` is easily hydrolysed whereas `SF_(6)` is not easily hydrolysed.
(ii) Chlorine water is a powerful bleaching agent.
(iii) Bi (V) is a stronger oxidising agent than Sb(V)
(b) What happens when :
(i) White phosphorus is heated with concentrated NaOH solution in an inert atmosphere of `CO_(2).`
(ii) `XeF_(6)` undergoes partial hydrolysis.
(Give the chemical equations involved).